Hi guys,

First post here.

I've just upgraded to 7.4 from 7.3.7 and all my macro partials have partially stopped working.

They work in the front-end but in the backoffice I get the error

Error loading Partial View script (file: ~/Views/MacroPartials/pageheader.cshtml)

I tried creating an empty Macro Partial and It still spits out the same error when I place it anywhere on the grid or the RTE.

Here is the log from the Umbraco Trace.

 2016-02-13 00:41:42,132 [P22864/D14/T56] WARN  umbraco.macro - Error loading partial view macro (View: ~/Views/MacroPartials/pageheader.cshtml). Exception: System.NullReferenceException: Object reference not set to an instance of an object.
   at Umbraco.Web.Mvc.UmbracoViewPage`1.SetViewData(ViewDataDictionary viewData)
   at System.Web.Mvc.RazorView.RenderView(ViewContext viewContext, TextWriter writer, Object instance)
   at Umbraco.Core.Profiling.ProfilingView.Render(ViewContext viewContext, TextWriter writer)
   at Umbraco.Web.Mvc.ControllerExtensions.RenderViewResultAsString(ControllerBase controller, ViewResultBase viewResult)
   at Umbraco.Web.Macros.PartialViewMacroEngine.Execute(MacroModel macro, IPublishedContent content)
   at umbraco.macro.LoadPartialViewMacro(MacroModel macro)
   at umbraco.macro.renderMacro(Hashtable pageElements, Int32 pageId)
 2016-02-13 00:41:42,134 [P22864/D14/T56] WARN  umbraco.macro - Error loading Partial View (file: ~/Views/MacroPartials/pageheader.cshtml). Exception: System.NullReferenceException: Object reference not set to an instance of an object.
   at Umbraco.Web.Mvc.UmbracoViewPage`1.SetViewData(ViewDataDictionary viewData)
   at System.Web.Mvc.RazorView.RenderView(ViewContext viewContext, TextWriter writer, Object instance)
   at Umbraco.Core.Profiling.ProfilingView.Render(ViewContext viewContext, TextWriter writer)
   at Umbraco.Web.Mvc.ControllerExtensions.RenderViewResultAsString(ControllerBase controller, ViewResultBase viewResult)
   at Umbraco.Web.Macros.PartialViewMacroEngine.Execute(MacroModel macro, IPublishedContent content)
   at umbraco.macro.LoadPartialViewMacro(MacroModel macro)
   at umbraco.macro.renderMacro(Hashtable pageElements, Int32 pageId)

Hope someone can help :)